mirror of https://github.com/grafana/grafana.git
102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package api
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import (
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"context"
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"github.com/grafana/grafana-plugin-sdk-go/data"
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"github.com/grafana/grafana/pkg/api/dtos"
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"github.com/grafana/grafana/pkg/models"
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eval "github.com/grafana/grafana/pkg/services/ngalert"
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"github.com/grafana/grafana/pkg/setting"
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"github.com/grafana/grafana/pkg/tsdb"
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"github.com/grafana/grafana/pkg/util"
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)
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// POST /api/alert-definitions/eval
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func (hs *HTTPServer) ConditionEval(c *models.ReqContext, dto dtos.EvalAlertConditionCommand) Response {
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alertCtx, cancelFn := context.WithTimeout(context.Background(), setting.AlertingEvaluationTimeout)
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defer cancelFn()
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alertExecCtx := eval.AlertExecCtx{Ctx: alertCtx, SignedInUser: c.SignedInUser}
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fromStr := c.Query("from")
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if fromStr == "" {
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fromStr = "now-3h"
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}
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toStr := c.Query("to")
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if toStr == "" {
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toStr = "now"
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}
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execResult, err := dto.Condition.Execute(alertExecCtx, fromStr, toStr)
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if err != nil {
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return Error(400, "Failed to execute conditions", err)
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}
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evalResults, err := eval.EvaluateExecutionResult(execResult)
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if err != nil {
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return Error(400, "Failed to evaluate results", err)
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}
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frame := evalResults.AsDataFrame()
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df := tsdb.NewDecodedDataFrames([]*data.Frame{&frame})
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instances, err := df.Encoded()
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if err != nil {
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return Error(400, "Failed to encode result dataframes", err)
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}
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return JSON(200, util.DynMap{
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"instances": instances,
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})
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}
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// GET /api/alert-definitions/eval/:dashboardId/:panelId/:refId"
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func (hs *HTTPServer) AlertDefinitionEval(c *models.ReqContext) Response {
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dashboardID := c.ParamsInt64(":dashboardID")
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panelID := c.ParamsInt64(":panelID")
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conditionRefID := c.Params(":refID")
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fromStr := c.Query("from")
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if fromStr == "" {
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fromStr = "now-3h"
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}
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toStr := c.Query("to")
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if toStr == "" {
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toStr = "now"
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}
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conditions, err := hs.AlertNG.LoadAlertCondition(dashboardID, panelID, conditionRefID, c.SignedInUser, c.SkipCache)
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if err != nil {
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return Error(400, "Failed to load conditions", err)
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}
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alertCtx, cancelFn := context.WithTimeout(context.Background(), setting.AlertingEvaluationTimeout)
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defer cancelFn()
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alertExecCtx := eval.AlertExecCtx{Ctx: alertCtx, SignedInUser: c.SignedInUser}
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execResult, err := conditions.Execute(alertExecCtx, fromStr, toStr)
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if err != nil {
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return Error(400, "Failed to execute conditions", err)
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}
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evalResults, err := eval.EvaluateExecutionResult(execResult)
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if err != nil {
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return Error(400, "Failed to evaluate results", err)
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}
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frame := evalResults.AsDataFrame()
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df := tsdb.NewDecodedDataFrames([]*data.Frame{&frame})
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instances, err := df.Encoded()
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if err != nil {
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return Error(400, "Failed to encode result dataframes", err)
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}
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return JSON(200, util.DynMap{
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"instances": instances,
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})
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}
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